| code | num | x | group | type | description |
|---|---|---|---|---|---|
| xdn | 0 | X | Catalogue System | Map Index | map sheet edges |
| gsr | 1 | G | Natural Environment | Geology | structure |
| gst | 2 | G | Natural Environment | Geology | lithology |
| ped | 3 | P | Natural Environment | Pedology | soil type zone |
| psy | 4 | P | Natural Environment | Pedology | sediment yield zone |
| per | 5 | P | Natural Environment | Pedology | erosivity zone |
| tsh | 6 | T | Natural Environment | Topography | spot height |
| tco | 7 | T | Natural Environment | Topography | contour |
| tev | 8 | T | Natural Environment | Topography | elevation zone |
| tsl | 9 | T | Natural Environment | Topography | constant slope zone |
| tas | 10 | T | Natural Environment | Topography | constant aspect zone |
| tla | 11 | T | Natural Environment | Topography | landform |
| bvd | 12 | B | Natural Environment | Biology | veld type zone (natural vegetation) |
| bvg | 13 | B | Natural Environment | Biology | vegetation zone |
| ban | 14 | B | Natural Environment | Biology | animal location zone |
| bec | 15 | B | Natural Environment | Biology | ecoregion |
| wca | 16 | W | Natural Environment | Water Feature | catchment |
| wdr | 17 | W | Natural Environment | Water Feature | drainage region |
| wri | 18 | W | Natural Environment | Water Feature | river |
| wla | 19 | W | Natural Environment | Water Feature | lake |
| wpa | 20 | W | Natural Environment | Water Feature | pan |
| wes | 21 | W | Natural Environment | Water Feature | estuary |
| wwe | 22 | W | Natural Environment | Water Feature | wetland |
| wlg | 23 | W | Natural Environment | Water Feature | lagoon |
| mev | 24 | M | Natural Environment | Meteorology | net evaporation (effective rainfall) |
| mav | 25 | M | Natural Environment | Meteorology | mean annual symons pan evaporation |
| map | 26 | M | Natural Environment | Meteorology | mean annual precipitation |
| mxr | 27 | M | Natural Environment | Meteorology | maximum annual rainfall |
| mnr | 28 | M | Natural Environment | Meteorology | minimum annual rainfall |
| mrr | 29 | M | Natural Environment | Meteorology | annual rainfall range |
| mxt | 30 | M | Natural Environment | Meteorology | maximum monthly temperature |
| mnt | 31 | M | Natural Environment | Meteorology | minimum monthly temperature |
| mat | 32 | M | Natural Environment | Meteorology | average monthly temperature |
| mrt | 33 | M | Natural Environment | Meteorology | annual temperature range |
| mcz | 34 | M | Natural Environment | Meteorology | climatic zone |
| mwz | 35 | M | Natural Environment | Meteorology | weathering zone |
| mlz | 36 | M | Natural Environment | Meteorology | lightning zone |
| mib | 37 | M | Natural Environment | Meteorology | isobar |
| mhu | 38 | M | Natural Environment | Meteorology | humidity zone |
| mws | 39 | M | Natural Environment | Meteorology | wind speed zone |
| msu | 40 | M | Natural Environment | Meteorology | sunlight zone |
| ind | 41 | I | Landuse | Industrial | industry |
| imn | 42 | I | Landuse | Industrial | mine |
| iqu | 43 | I | Landuse | Industrial | quarry |
| ipw | 44 | I | Landuse | Industrial | power station |
| iwd | 45 | I | Landuse | Industrial | waste disposal site |
| dst | 46 | D | Landuse | Residential | settlement |
| drz | 47 | D | Landuse | Residential | residential zone |
| dpc | 48 | D | Landuse | Residential | population centroid |
| air | 49 | A | Landuse | Agricultural | irrigated agriculture |
| adl | 50 | A | Landuse | Agricultural | dryland agriculture |
| ali | 51 | A | Landuse | Agricultural | livestock agriculture |
| aaq | 52 | A | Landuse | Agricultural | aquaculture |
| for | 53 | F | Landuse | Forestry | forest |
| ffb | 54 | F | Landuse | Forestry | firebreak |
| ffl | 55 | F | Landuse | Forestry | fire lookout |
| rec | 56 | R | Landuse | Recreation | recreational activity |
| res | 57 | R | Landuse | Recreation | resort |
| rsa | 58 | R | Landuse | Recreation | scenic area |
| cnr | 59 | C | Landuse | Conservation | nature reserve |
| cfc | 60 | C | Landuse | Conservation | forestry conservation area |
| cnh | 61 | C | Landuse | Conservation | natural heritage site |
| crd | 62 | C | Landuse | Conservation | red data species zone |
| crf | 63 | C | Landuse | Conservation | rare fish species zone |
| csa | 64 | C | Landuse | Conservation | sensitive area |
| lir | 65 | L | Landuse | Landuse Potential | irrigation potential |
| laf | 66 | L | Landuse | Landuse Potential | afforestation potential |
| lca | 67 | L | Landuse | Landuse Potential | land capability |
| lda | 68 | L | Landuse | Landuse Potential | dam potential |
| lwe | 69 | L | Landuse | Landuse Potential | well potential |
| lmn | 70 | L | Landuse | Landuse Potential | mining potential |
| lre | 71 | L | Landuse | Landuse Potential | recreation potential |
| lco | 72 | L | Landuse | Landuse Potential | conservation potential |
| lst | 73 | L | Landuse | Landuse Potential | settlement potential |
| lcl | 74 | L | Landuse | Land Classification | landclass type zone |
| nsc | 75 | N | Infrastructure | Water Infrastructure | scheme - not spatial |
| npi | 76 | N | Infrastructure | Water Infrastructure | pipeline (water) |
| nca | 77 | N | Infrastructure | Water Infrastructure | canal |
| nwr | 78 | N | Infrastructure | Water Infrastructure | weir (discharge/ flow) |
| nda | 79 | N | Infrastructure | Water Infrastructure | dam |
| nre | 80 | N | Infrastructure | Water Infrastructure | reservoir |
| nwb | 81 | N | Infrastructure | Water Infrastructure | borehole (water) |
| nwf | 82 | N | Infrastructure | Water Infrastructure | wellfield |
| nwe | 83 | N | Infrastructure | Water Infrastructure | well |
| nps | 84 | N | Infrastructure | Water Infrastructure | pumping station |
| npu | 85 | N | Infrastructure | Water Infrastructure | purification works |
| nsw | 86 | N | Infrastructure | Water Infrastructure | sewage treatment works |
| nms | 87 | N | Infrastructure | Water Infrastructure | monitoring station (water) |
| naq | 88 | N | Infrastructure | Water Infrastructure | aqueduct (inter basin transfer) |
| nsi | 89 | N | Infrastructure | Water Infrastructure | siphon |
| nrj | 90 | N | Infrastructure | Water Infrastructure | reject |
| nrg | 91 | N | Infrastructure | Water Infrastructure | radial gate |
| npp | 92 | N | Infrastructure | Water Infrastructure | pump |
| ntp | 93 | N | Infrastructure | Water Infrastructure | standpipe |
| nrd | 94 | N | Infrastructure | Infrastructure | road |
| nrw | 95 | N | Infrastructure | Infrastructure | railway line |
| npw | 96 | N | Infrastructure | Infrastructure | power line |
| nws | 97 | N | Infrastructure | Infrastructure | weather station |
| ngb | 98 | N | Infrastructure | Infrastructure | borehole (geotechnical) |
| nte | 99 | N | Infrastructure | Infrastructure | telephone line |
| nst | 100 | N | Infrastructure | Infrastructure | street |
| nap | 101 | N | Infrastructure | Infrastructure | airport |
| nfs | 102 | N | Infrastructure | Infrastructure | fuel store |
| nbr | 103 | N | Infrastructure | Infrastructure | bridge |
| ntu | 104 | N | Infrastructure | Infrastructure | tunnel |
| sin | 105 | S | Social and Cultural Regions | Administrative | international zone |
| smd | 106 | S | Social and Cultural Regions | Administrative | magisterial district |
| spr | 107 | S | Social and Cultural Regions | Administrative | province |
| sbs | 107.1 | S | Social and Cultural Regions | Administrative | old homeland borders |
| sdr | 108 | S | Social and Cultural Regions | Administrative | development region |
| smu | 109 | S | Social and Cultural Regions | Administrative | municipality (towns) |
| srs | 110 | S | Social and Cultural Regions | Administrative | regional services council |
| srd | 111 | S | Social and Cultural Regions | Administrative | RDAC (?!) |
| sfr | 112 | S | Social and Cultural Regions | Cadastral | farm or registered property |
| slp | 113 | S | Social and Cultural Regions | Cadastral | land parcel |
| sed | 114 | S | Social and Cultural Regions | Social Statistical | enumeration district |
| sel | 115 | S | Social and Cultural Regions | Social Statistical | electoral division |
| hrg | 115.1 | H | Water Management | Authorities | regions of DWAF |
| hca | 116 | H | Water Management | Authorities | water control area or catchment |
| hbd | 117 | H | Water Management | Authorities | water board |
| hib | 118 | H | Water Management | Authorities | irrigation board |
| hrb | 119 | H | Water Management | Authorities | river basin authority |
| hsa | 120 | H | Water Management | Authorities | study area |
| hrg | 120.1 | H | Water Management | Authorities | Water and Sanitation management region |
| hdz | 121 | H | Water Management | Hydrology | hydrological zone (runoff variability) |
| hru | 122 | H | Water Management | Hydrology | mean annual runoff |
| hpr | 123 | H | Water Management | Hydrology | runoff potential |
| hvr | 124 | H | Water Management | Hydrology | virgin runoff |
| hrd | 125 | H | Water Management | Hydrology | developed runoff |
| hgp | 126 | H | Water Management | Hydrology | groundwater potential |
| hfl | 127 | H | Water Management | Hydrology | flood zone |
| hgh | 128 | H | Water Management | Hydrology | geohydrological zone |
| hpi | 129 | H | Water Management | Water Quality Management | water pollution incident |
| hms | 130 | H | Water Management | Water Quality Management | permit monitoring station |
| hwq | 131 | H | Water Management | Water Quality Management | water quality variables |
| img | 132 | H | Water Management | Analysis Tools | landsat image |
| dtm | 133 | H | Water Management | Analysis Tools | digital terrain model |